A beautiful lens. Feels great on the on the 30D. Solid. Sharp with great colours. A great introduction to L lenses. Works very well matched with a 50mm prime and a 70-200 L F4 on a 1.6x camera. I will eventually move to FF at some point in the next few years and I will be able to take this lens with me, unlike the 17-55 2.8 IS EF-S, which was a serious consideration.